Man, people want to buy a god damn phone, and they'll buy one they like. They don't care or want to care about "open bootloaders" because for the vast majority of people it gives them ZERO advantage. They don't want to load up the latest CM10.1_KANG_super_duper_deodexed_perfect_nobuggs_OC1500 ROM, they want their phones to look pretty, ring when they're supposed to and that's it. You think you can "educate" people, best of luck to you, but you just want to interest people to something they do not want to care about, full stop.
For what it's worth, I too own and love my GNexus. It's not a phone for everyone.